CN102964948A - Heat-curing heat-conduction heat-dissipation paint and preparation method thereof - Google Patents
Heat-curing heat-conduction heat-dissipation paint and preparation method thereof Download PDFInfo
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- CN102964948A CN102964948A CN2012104587237A CN201210458723A CN102964948A CN 102964948 A CN102964948 A CN 102964948A CN 2012104587237 A CN2012104587237 A CN 2012104587237A CN 201210458723 A CN201210458723 A CN 201210458723A CN 102964948 A CN102964948 A CN 102964948A
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Abstract
The invention discloses heat-curing heat-conduction heat-dissipation paint and a preparation method thereof, belonging to the field of heat dissipation paint. The paint comprises the components by weight percent: 25-30% of acrylic acid resin, 25-30% of nitro-cotton resin, 15-20% of solvent, 2-4% of auxiliary agent, 2-3% of coloring agent and 20-30% of inorganic filler, wherein the solvent comprises the components: butyl acetate, n-butyl alcohol and ethyl cellosolve according to the mass ratio of 2: 2: 1. The preparation method comprises the steps of: evenly mixing the butyl acetate, the n-butyl alcohol and the ethyl cellosolve; dissolving all the acrylic acid resin and nitro-cotton resin into the mixed solvent, and mixing the mixture with the coloring agent; evenly stirring at room temperature to form paint vehicle; and grinding, dispersing, adding the inorganic filler into the paint vehicle, evenly stirring and stabilizing to obtain the target paint. The heat-curing heat-conduction heat-dissipation paint has excellent flame retardant performance, insulation property, high temperature resistance and corrosion resistance, so that the heat-conduction heat-dissipation effects of the coating using the heat-curing heat-conduction heat-dissipation paint are obviously improved compared with the common coating.
Description
Technical field
The present invention relates to a kind of heat conduction and heat radiation coating and preparation method thereof, in particular, relate to a kind of thermofixation heat conduction and heat radiation coating and preparation method thereof.
Background technology
Domestic high power density electronic industry device is to compact in size, compact construction, function diversification future development, and the heat conduction and heat radiation problem that causes has thus badly influenced working stability and the reliability of high power electronic device.Used thermal control part generally adopts metallic substance on the electron device at present, but such quality of materials is heavy, thermal expansivity is large etc., greatly limited its being widely used as the package cooling material.So research and development thinning, the novel material that quality is light, thermal conductivity is high are for realizing that each size application apparatus lightweight of parts and operation high efficiency are significant.
Length set time of solvent based coating, high energy consumption, often need about one hour set time, solidification value need to reach 150 degree Celsius, solvent type resin need to add the solvent-borne type thinner simultaneously, the thinner volatile quantity is large in solidification process, cause loss larger, production cost also causes certain environmental pollution.
The at present research aspect heat conduction and heat radiation coating both at home and abroad and few, be confined to solvent based coating, in Chinese patent application CN200810146607.5 heat radiation coating and preparation method thereof, adopt silicone resin and organic solvent, add silicon carbide, aluminium powder and zinc oxide and prepare heat radiation coating, be used for heat dissipation equipment; The ink component of adding in the solvent based coating simultaneously has the characteristics of high temperature tolerance, high flame retardant, high rigidity, Halogen, mainly be applicable to printed circuit board (PCB) pb-free solder and unleaded tin (hot air leveling) technique of blowing, but it does not have good heat conduction and heat radiation effect, it adopts the printing ink mill base in addition, relatively poor with the Combination of inorganic heat conductive filler, Average Particle Diameters requirement to inorganic thermally conductive material is very high, need to reach micron order, and can't obtain the thermally conductive material of excellent performance; Carbon black has good heat conduction and heat radiation effect, but its with coating in the combination difficulty relatively of other compositions, obtain relatively difficulty of black coating, simultaneously production cost is also higher.
Summary of the invention
The technical problem that invention will solve
Often need about one hour set time for existing solvent-borne type heat conduction and heat radiation coating film forming, solidification value need to reach 150 degree Celsius, the power consumption that causes and problem of environmental pollution, the invention provides a kind of thermofixation heat conduction and heat radiation coating and preparation method thereof, be specially adapted in the high power density electronic industry device manufacturing field, can be in 70 degrees centigrade of curing of temperature, the coating radiating effect is obvious.
Technical scheme
A kind of thermofixation heat conduction and heat radiation coating, comprise acroleic acid resin, nitro-cotton resin, solvent, auxiliary agent, staining agent and mineral filler, its weight proportion is as follows: acroleic acid resin 25%-30%, nitro-cotton resin 25%-30%, solvent 15%-20%, auxiliary agent 2%-4%, staining agent 2%-3%, mineral filler 20%-30%.Described solvent is the solvent that N-BUTYL ACETATE (CAS:123-86-4), propyl carbinol and ethyl cellosolve (CAS:110-80-5) mix, and its constituent mass is than being 2:2:1.Described auxiliary agent comprises defoamer and flow agent, and defoamer and flow agent mass ratio are 1:1, and wherein defoamer is silicone based defoamer, and flow agent is organic fluorine class flow agent.
Described mineral filler is aluminium nitride, boron nitride, aluminum oxide, silicon carbide, copper powder or two or more combination.Described aluminium nitride and boron nitride median size are 0.5～3 micron, and described staining agent is printing ink or carbon black, and aluminum oxide, copper powder, silicon carbide and carbon black median size are 1～3 micron.
Carbon black materials uses the model of Zhengzhou Tai Rui limited liability company production to be the carbon black of TR1805.
Thermofixation heat conduction and heat radiation coating, its preparation methods steps is:
(1) disposes each component proportion, all N-BUTYL ACETATEs, propyl carbinol and ethyl cellosolve are mixed, whole acroleic acid resins and nitro-cotton resin are dissolved in the above-mentioned mixed solvent, form resin solution.
(2) get the resin solution of all-mass in the step (1), mixes with staining agent, under normal temperature 800-1000 rev/min condition, stir the formation paint vehicle.
(3) paint vehicle in the step (2) is poured into grinding distribution to fineness reaches 5 microns in the sand mill, is added again mineral filler, stir under the normal temperature 800-1000 rev/min condition stable after, namely get target coating.
Mineral filler is aluminium nitride, boron nitride, aluminum oxide, silicon carbide, copper powder or two or more combination in the described step (3).
Beneficial effect
The present invention is with respect to existing solvent-borne type heat radiation coating, and production cost is controlled effectively, and production efficiency obtains obviously to improve; Simultaneously applying time decreased to ten that heat-delivery surface need solidify minute, solidification value can be 70 degrees centigrade simultaneously; Use simultaneously carbon black to remove dyeing, and can increase the prescription heat sinking function, use the nitro-cotton resin to have fast drying, have that hardness and brightness smooth weathering resistance are better preferably, shorten construction period, enhance productivity.This coating also has good fire retardant insulating, high temperature resistant and excellent corrosion resistance arranged, so that use the relatively common coating of heat conduction and heat radiation effect of coating of the present invention significantly to be strengthened.
Embodiment
Below in conjunction with example the present invention is further described in detail.
The acroleic acid resin that uses among the following embodiment is: Niu Peisi thermosetting acrylic resin (the triumphant mattress chemical industry in Shanghai company limited model: Setalux 1757 CAS:9003-01-4).
Described nitro-cotton resin (CAS NO.: 9004-70-0) produce model: H type specification: 1/2 for Shanghai Ai Nuo digests worker company limited.
Embodiment 1
Get acroleic acid resin 30%, nitro-cotton resin 30%, solvent 15%, auxiliary agent 2%, staining agent 3%, copper powder 20%, the copper powder median size is 1 micron.
Described solvent composition is N-BUTYL ACETATE, propyl carbinol, ethyl cellosolve, and its constituent mass is than being 2:2:1 in the mixed solvent.
Described auxiliary agent comprises defoamer and flow agent, and defoamer and flow agent mass ratio are 1:1, and wherein defoamer is silicone based defoamer, and flow agent is organic fluorine class flow agent.
All N-BUTYL ACETATEs, propyl carbinol and ethyl cellosolve are mixed, whole acroleic acid resins and nitro-cotton resin are dissolved in the above-mentioned mixed solvent, form resin solution.Get the resin solution of all-mass in the above-mentioned steps, mix with staining agent, under normal temperature 800-1000 rev/min condition, stir, form paint vehicle; Paint vehicle in the above-mentioned steps poured into grinding distribution to fineness reaches 5 microns in the sand mill, adds again all mineral fillers, stir under the normal temperature 800-1000 rev/min condition stable after, namely get target coating.
Be attached at LED pin position to measure the LED junction temperature after using the naked lamp of 3W LED to light and with thermocouple wire (Thermocouple).Minute Do lights the time in identical, same amount measuring point position, under the same test envrionment conditions, test coating pastes before the radiator element and coating paste behind the radiator element between temperature contrast, the radiator element coating by testing this coating preparation is compared the temperature difference and is reached 12 ℃ with not being coated with.
Embodiment 2
Preparing propone acid resin 30%, nitro-cotton resin 30%, solvent 15%, auxiliary agent 2%, carbon black 3%, boron nitride 20%, its median size of boron nitride is 3 microns.
Described solvent is N-BUTYL ACETATE, propyl carbinol, ethyl cellosolve, and its mass component is than being 2:2:1.
Described auxiliary agent comprises defoamer and flow agent, and defoamer and flow agent mass ratio are 1:1, and wherein defoamer is silicone based defoamer, and flow agent is organic fluorine class flow agent.
All N-BUTYL ACETATEs, propyl carbinol and ethyl cellosolve are mixed, whole acroleic acid resins and nitro-cotton resin are dissolved in the above-mentioned mixed solvent, form resin solution.Get the resin solution of all-mass in the above-mentioned steps, mix with staining agent, under normal temperature 800-1000 rev/min condition, stir, form paint vehicle; Paint vehicle in the above-mentioned steps poured into grinding distribution to fineness reaches 5 microns in the sand mill, adds again all mineral fillers, stir under the normal temperature 800-1000 rev/min condition stable after, namely get target coating.
Be attached at LED pin position to measure the LED junction temperature after using the naked lamp of 3W LED to light and with thermocouple wire (Thermocouple).Minute Do lights the time in identical, same amount measuring point position, under the same test envrionment conditions, test coating pastes before the radiator element and coating paste behind the radiator element between temperature contrast, the radiator element coating by testing this coating preparation is compared the temperature difference and is reached 8 ℃ with not being coated with.
Embodiment 3
Preparing propone acid resin 30%, nitro-cotton resin 30%, solvent 15%, auxiliary agent 2%, carbon black 3%, aluminium nitride 20%, its median size of aluminium nitride is 3 microns.
Described solvent is N-BUTYL ACETATE, propyl carbinol, ethyl cellosolve, and its mass component is than being 2:2:1.
Described auxiliary agent comprises defoamer and flow agent, and defoamer and flow agent mass ratio are 1:1, and wherein defoamer is silicone based defoamer, and flow agent is organic fluorine class flow agent.
All N-BUTYL ACETATEs, propyl carbinol and ethyl cellosolve are mixed, whole acroleic acid resins and nitro-cotton resin are dissolved in the above-mentioned mixed solvent, form resin solution.Get the resin solution of all-mass in the above-mentioned steps, mix with staining agent, under normal temperature 800-1000 rev/min condition, stir, form paint vehicle; Paint vehicle in the above-mentioned steps poured into grinding distribution to fineness reaches 5 microns in the sand mill, adds again all mineral fillers, stir under the normal temperature 800-1000 rev/min condition stable after, namely get target coating.
Be attached at LED pin position to measure the LED junction temperature after using the naked lamp of 3W LED to light and with thermocouple wire (Thermocouple).Minute Do lights the time in identical, same amount measuring point position, under the same test envrionment conditions, test coating pastes before the radiator element and coating paste behind the radiator element between temperature contrast, the radiator element coating by testing this coating preparation is compared the temperature difference and is reached 8 ℃ with not being coated with.Test uses coating of the present invention to paste (Korea S) large (DAIMYUNG S﹠amp of bright limited-liability company on radiator element and the existing market; S CO., LTD) temperature contrast between the 0.15mm thickness radiating sheet (TR Coating Agent for Slim Board Heatsink) of producing, the successful that uses coating of the present invention to paste its heat radiation heat conduction of radiator element by test is better than the 0.15mm thickness radiating sheet that (Korea S) large bright limited-liability company produces on the existing market, and exothermic temperature can reduce by 6 ℃ again.
Embodiment 4
Preparing propone acid resin 25%, nitro-cotton resin 25%, solvent 15%, auxiliary agent 2%, carbon black 3%, median size is 2 Micron Copper Powders 20%, and median size is 2 microns silicon carbide 10%, and copper powder and silicon carbide median size are 2 microns.
Described solvent is N-BUTYL ACETATE, propyl carbinol, ethyl cellosolve, and its mass component is than being 2:2:1.
Described auxiliary agent comprises defoamer and flow agent, and defoamer and flow agent mass ratio are 1:1, and wherein defoamer is silicone based defoamer, and flow agent is organic fluorine class flow agent.
All N-BUTYL ACETATEs, propyl carbinol and ethyl cellosolve are mixed, whole acroleic acid resins and nitro-cotton resin are dissolved in the above-mentioned mixed solvent, form resin solution.Get the resin solution of all-mass in the above-mentioned steps, mix with staining agent, under normal temperature 800-1000 rev/min condition, stir, form paint vehicle; Paint vehicle in the above-mentioned steps poured into grinding distribution to fineness reaches 5 microns in the sand mill, adds again all mineral fillers, stir under the normal temperature 800-1000 rev/min condition stable after, namely get target coating.
Be attached at LED pin position to measure the LED junction temperature after using the naked lamp of 3W LED to light and with thermocouple wire (Thermocouple).Minute Do lights the time in identical, same amount measuring point position, under the same test envrionment conditions, test coating pastes before the radiator element and coating paste behind the radiator element between temperature contrast, the radiator element coating by testing this coating preparation is compared the temperature difference and is reached 12 ℃ with not being coated with.Test uses coating of the present invention to paste (Korea S) large (DAIMYUNG S﹠amp of bright limited-liability company on radiator element and the existing market; S CO., LTD) temperature contrast between the 0.15mm thickness radiating sheet (TR Coating Agent for Slim Board Heatsink) of producing, the successful that uses coating of the present invention to paste its heat radiation heat conduction of radiator element by test is better than the 0.15mm thickness radiating sheet that (Korea S) large bright limited-liability company produces on the existing market, and exothermic temperature can reduce by 10 ℃ again.
Embodiment 5
Preparing propone acid resin 28%, nitro-cotton resin 25%, solvent 20%, auxiliary agent 4%, carbon black 3%, median size are 3 micrometer aluminas 20%.
Described solvent is N-BUTYL ACETATE, propyl carbinol, ethyl cellosolve, and its mass component is than being 2:2:1.
Described auxiliary agent comprises defoamer and flow agent, and defoamer and flow agent mass ratio are 1:1, and wherein defoamer is silicone based defoamer, and flow agent is organic fluorine class flow agent.
All N-BUTYL ACETATEs, propyl carbinol and ethyl cellosolve are mixed, whole acroleic acid resins and nitro-cotton resin are dissolved in the above-mentioned mixed solvent, form resin solution.Get the resin solution of all-mass in the above-mentioned steps, mix with staining agent, under normal temperature 800-1000 rev/min condition, stir, form paint vehicle; Paint vehicle in the above-mentioned steps poured into grinding distribution to fineness reaches 5 microns in the sand mill, adds again all mineral fillers, stir under the normal temperature 800-1000 rev/min condition stable after, namely get target coating.
Be attached at LED pin position to measure the LED junction temperature after using the naked lamp of 3W LED to light and with thermocouple wire (Thermocouple).Minute Do lights the time in identical, same amount measuring point position, under the same test envrionment conditions, test coating pastes before the radiator element and coating paste behind the radiator element between temperature contrast, the radiator element coating by testing this coating preparation is compared the temperature difference and is reached 3 ℃ with not being coated with.Test uses coating of the present invention to paste (Korea S) large (DAIMYUNG S﹠amp of bright limited-liability company on radiator element and the existing market; S CO., LTD) temperature contrast between the 0.15mm thickness radiating sheet (TR Coating Agent for Slim Board Heatsink) of producing, the successful that uses coating of the present invention to paste its heat radiation heat conduction of radiator element by test is better than the 0.15mm thickness radiating sheet that (Korea S) large bright limited-liability company produces on the existing market, and exothermic temperature can reduce by 1 ℃ again.
Embodiment 6
Preparing propone acid resin 25%, nitro-cotton resin 25%, solvent 20%, auxiliary agent 2%, printing ink 3%, silicon carbide 25%, the silicon carbide median size is 1 micron.
Described solvent is N-BUTYL ACETATE, propyl carbinol, ethyl cellosolve, and its mass component is than being 2:2:1.
Described auxiliary agent comprises defoamer and flow agent, and defoamer and flow agent mass ratio are 1:1, and wherein defoamer is silicone based defoamer, and flow agent is organic fluorine class flow agent.
All N-BUTYL ACETATEs, propyl carbinol and ethyl cellosolve are mixed, whole acroleic acid resins and nitro-cotton resin are dissolved in the above-mentioned mixed solvent, form resin solution.Get the resin solution of all-mass in the above-mentioned steps, mix with staining agent, under normal temperature 800-1000 rev/min condition, stir, form paint vehicle; Paint vehicle in the above-mentioned steps poured into grinding distribution to fineness reaches 5 microns in the sand mill, adds again all mineral fillers, stir under the normal temperature 800-1000 rev/min condition stable after, namely get target coating.
Be attached at LED pin position to measure the LED junction temperature after using the naked lamp of 3W LED to light and with thermocouple wire (Thermocouple).Minute Do lights the time in identical, same amount measuring point position, under the same test envrionment conditions, test coating pastes before the radiator element and coating paste behind the radiator element between temperature contrast, the radiator element coating by testing this coating preparation is compared the temperature difference and is reached 4 ℃ with not being coated with.Test uses coating of the present invention to paste (Korea S) large (DAIMYUNG S﹠amp of bright limited-liability company on radiator element and the existing market; S CO., LTD) temperature contrast between the 0.15mm thickness radiating sheet (TR Coating Agent for Slim Board Heatsink) of producing, the successful that uses coating of the present invention to paste its heat radiation heat conduction of radiator element by test is better than the 0.15mm thickness radiating sheet that (Korea S) large bright limited-liability company produces on the existing market, and exothermic temperature can reduce by 2 ℃ again.
Embodiment 7
Preparing propone acid resin 25%, nitro-cotton resin 25%, solvent 15%, auxiliary agent 2%, printing ink 3%, median size is 3 microns aluminum oxide 30%.
Described solvent is N-BUTYL ACETATE, propyl carbinol, ethyl cellosolve, and its mass component is than being 2:2:1.
Described auxiliary agent comprises defoamer and flow agent, and defoamer and flow agent mass ratio are 1:1, and wherein defoamer is silicone based defoamer, and flow agent is organic fluorine class flow agent.
All N-BUTYL ACETATEs, propyl carbinol and ethyl cellosolve are mixed, whole acroleic acid resins and nitro-cotton resin are dissolved in the above-mentioned mixed solvent, form resin solution.Get the resin solution of all-mass in the above-mentioned steps, mix with staining agent, under normal temperature 800-1000 rev/min condition, stir, form paint vehicle; Paint vehicle in the above-mentioned steps poured into grinding distribution to fineness reaches 5 microns in the sand mill, adds again all mineral fillers, stir under the normal temperature 800-1000 rev/min condition stable after, namely get target coating.
Be attached at LED pin position to measure the LED junction temperature after using the naked lamp of 3W LED to light and with thermocouple wire (Thermocouple).Minute Do lights the time in identical, same amount measuring point position, under the same test envrionment conditions, test coating pastes before the radiator element and coating paste behind the radiator element between temperature contrast, the radiator element coating by testing this coating preparation is compared the temperature difference and is reached 3 ℃ with not being coated with.Test uses coating of the present invention to paste (Korea S) large (DAIMYUNG S﹠amp of bright limited-liability company on radiator element and the existing market; S CO., LTD) temperature contrast between the 0.15mm thickness radiating sheet (TR Coating Agent for Slim Board Heatsink) of producing, the successful that uses coating of the present invention to paste its heat radiation heat conduction of radiator element by test is better than the 0.15mm thickness radiating sheet that (Korea S) large bright limited-liability company produces on the existing market, and exothermic temperature can reduce by 1 ℃ again.
Embodiment 8
Preparing propone acid resin 25%, nitro-cotton resin 25%, solvent 20%, auxiliary agent 2%, median size is that 2 microns carbon blacks 3%, median size are 1 Micron Copper Powder 5%, and median size is 3 microns boron nitride 5%, and median size is 1 micron aluminium nitride 5%, median size is 3 microns silicon carbide 5%, and median size is 2 micrometer aluminas 5%.
Described solvent is N-BUTYL ACETATE, propyl carbinol, ethyl cellosolve, and its mass component is than being 2:2:1.
Described auxiliary agent comprises defoamer and flow agent, and defoamer and flow agent mass ratio are 1:1, and wherein defoamer is silicone based defoamer, and flow agent is organic fluorine class flow agent.
All N-BUTYL ACETATEs, propyl carbinol and ethyl cellosolve are mixed, whole acroleic acid resins and nitro-cotton resin are dissolved in the above-mentioned mixed solvent, form resin solution.Get the resin solution of all-mass in the above-mentioned steps, mix with staining agent, under normal temperature 800-1000 rev/min condition, stir, form paint vehicle; Paint vehicle in the above-mentioned steps poured into grinding distribution to fineness reaches 5 microns in the sand mill, adds again all mineral fillers, stir under the normal temperature 800-1000 rev/min condition stable after, namely get target coating.
Be attached at LED pin position to measure the LED junction temperature after using the naked lamp of 3W LED to light and with thermocouple wire (Thermocouple).Minute Do lights the time in identical, same amount measuring point position, under the same test envrionment conditions, test coating pastes before the radiator element and coating paste behind the radiator element between temperature contrast, the radiator element coating by testing this coating preparation is compared the temperature difference and is reached 7 ℃ with not being coated with.Test uses coating of the present invention to paste (Korea S) large (DAIMYUNG S﹠amp of bright limited-liability company on radiator element and the existing market; S CO., LTD) temperature contrast between the 0.15mm thickness radiating sheet (TR Coating Agent for Slim Board Heatsink) of producing, the successful that uses coating of the present invention to paste its heat radiation heat conduction of radiator element by test is better than the 0.15mm thickness radiating sheet that (Korea S) large bright limited-liability company produces on the existing market, and exothermic temperature can reduce by 5 ℃ again.
Embodiment 9
Preparing propone acid resin 25%, nitro-cotton resin 25%, solvent 16%, auxiliary agent 2%, carbon black 2%, median size are 1 Micron Copper Powder 7%, and median size is 0.5 micron boron nitride 7%, median size is 2 microns aluminium nitride 6%, and median size is 3 microns silicon carbide 5%, and median size is 1 micrometer alumina 5%.
Described solvent is N-BUTYL ACETATE, propyl carbinol, ethyl cellosolve, and its mass component is than being 2:2:1.
Described auxiliary agent comprises defoamer and flow agent, and defoamer and flow agent mass ratio are 1:1, and wherein defoamer is silicone based defoamer, and flow agent is organic fluorine class flow agent.
All N-BUTYL ACETATEs, propyl carbinol and ethyl cellosolve are mixed, whole acroleic acid resins and nitro-cotton resin are dissolved in the above-mentioned mixed solvent, form resin solution.Get the resin solution of all-mass in the above-mentioned steps, mix with staining agent, under normal temperature 800-1000 rev/min condition, stir, form paint vehicle; Paint vehicle in the above-mentioned steps poured into grinding distribution to fineness reaches 5 microns in the sand mill, adds again all mineral fillers, stir under the normal temperature 800-1000 rev/min condition stable after, namely get target coating.
Be attached at LED pin position to measure the LED junction temperature after using the naked lamp of 3W LED to light and with thermocouple wire (Thermocouple).Minute Do lights the time in identical, same amount measuring point position, under the same test envrionment conditions, test coating pastes before the radiator element and coating paste behind the radiator element between temperature contrast, the radiator element coating by testing this coating preparation is compared the temperature difference and is reached 9 ℃ with not being coated with.Test uses coating of the present invention to paste (Korea S) large (DAIMYUNG S﹠amp of bright limited-liability company on radiator element and the existing market; S CO., LTD) temperature contrast between the 0.15mm thickness radiating sheet (TR Coating Agent for Slim Board Heatsink) of producing, the successful that uses coating of the present invention to paste its heat radiation heat conduction of radiator element by test is better than the 0.15mm thickness radiating sheet that (Korea S) large bright limited-liability company produces on the existing market, and exothermic temperature can reduce by 7 ℃ again.
Embodiment 10
Preparing propone acid resin 25%, nitro-cotton resin 25%, solvent 15%, auxiliary agent 2%, median size is that 3 microns carbon blacks 3%, median size are 2 Micron Copper Powders 5%, and median size is 1 micron boron nitride 5%, and median size is 0.5 micron aluminium nitride 8%, median size is 3 microns silicon carbide 6%, and median size is 2 micrometer aluminas 6%.
Described solvent is N-BUTYL ACETATE, propyl carbinol, ethyl cellosolve, and its mass component is than being 2:2:1.
Described auxiliary agent comprises defoamer and flow agent, and defoamer and flow agent mass ratio are 1:1, and wherein defoamer is silicone based defoamer, and flow agent is organic fluorine class flow agent.
All N-BUTYL ACETATEs, propyl carbinol and ethyl cellosolve are mixed, whole acroleic acid resins and nitro-cotton resin are dissolved in the above-mentioned mixed solvent, form resin solution.Get the resin solution of all-mass in the above-mentioned steps, mix with staining agent, under normal temperature 800-1000 rev/min condition, stir, form paint vehicle; Paint vehicle in the above-mentioned steps poured into grinding distribution to fineness reaches 5 microns in the sand mill, adds again all mineral fillers, stir under the normal temperature 800-1000 rev/min condition stable after, namely get target coating.
Be attached at LED pin position to measure the LED junction temperature after using the naked lamp of 3W LED to light and with thermocouple wire (Thermocouple).Minute Do lights the time in identical, same amount measuring point position, under the same test envrionment conditions, test coating pastes before the radiator element and coating paste behind the radiator element between temperature contrast, the radiator element coating by testing this coating preparation is compared the temperature difference and is reached 12 ℃ with not being coated with.Test uses coating of the present invention to paste (Korea S) large (DAIMYUNG S﹠amp of bright limited-liability company on radiator element and the existing market; S CO., LTD) temperature contrast between the 0.15mm thickness radiating sheet (TR Coating Agent for Slim Board Heatsink) of producing, the successful that uses coating of the present invention to paste its heat radiation heat conduction of radiator element by test is better than the 0.15mm thickness radiating sheet that (Korea S) large bright limited-liability company produces on the existing market, and exothermic temperature can reduce by 10 ℃ again.
Embodiment 11
Preparing propone acid resin 25%, nitro-cotton resin 25%, solvent 16%, auxiliary agent 2%, median size is that 3 microns carbon blacks 3%, median size are 2 Micron Copper Powders 5%, and median size is 0.5 micron boron nitride 5%, and median size is 0.5 micron aluminium nitride 5%, median size is 1 micron silicon carbide 7%, and median size is 2 micrometer aluminas 7%.
Described solvent is N-BUTYL ACETATE, propyl carbinol, ethyl cellosolve, and its mass component is than being 2:2:1.
Described auxiliary agent comprises defoamer and flow agent, and defoamer and flow agent mass ratio are 1:1, and wherein defoamer is silicone based defoamer, and flow agent is organic fluorine class flow agent.
All N-BUTYL ACETATEs, propyl carbinol and ethyl cellosolve are mixed, whole acroleic acid resins and nitro-cotton resin are dissolved in the above-mentioned mixed solvent, form resin solution.Get the resin solution of all-mass in the above-mentioned steps, mix with staining agent, under normal temperature 800-1000 rev/min condition, stir, form paint vehicle; Paint vehicle in the above-mentioned steps poured into grinding distribution to fineness reaches 5 microns in the sand mill, adds again all mineral fillers, stir under the normal temperature 800-1000 rev/min condition stable after, namely get target coating.
Be attached at LED pin position to measure the LED junction temperature after using the naked lamp of 3W LED to light and with thermocouple wire (Thermocouple).Minute Do lights the time in identical, same amount measuring point position, under the same test envrionment conditions, test coating pastes before the radiator element and coating paste behind the radiator element between temperature contrast, the radiator element coating by testing this coating preparation is compared the temperature difference and is reached 7 ℃ with not being coated with.Test uses coating of the present invention to paste (Korea S) large (DAIMYUNG S﹠amp of bright limited-liability company on radiator element and the existing market; S CO.LTD) temperature contrast between the 0.15mm thickness radiating sheet (TR Coating Agent for Slim Board Heatsink) of producing, the successful that uses coating of the present invention to paste its heat radiation heat conduction of radiator element by test is better than the 0.15mm thickness radiating sheet that (Korea S) large bright limited-liability company produces on the existing market, and exothermic temperature can reduce by 5 ℃ again.
Embodiment 12
Preparing propone acid resin 25%, nitro-cotton resin 25%, solvent 15%, auxiliary agent 2%, median size is that 2 microns carbon blacks 3%, median size are 2 Micron Copper Powders 6%, and median size is 1.5 microns boron nitride 6%, and median size is 1.5 microns aluminium nitride 6%, median size is 2 microns silicon carbide 7%, and median size is 2 micrometer aluminas 5%.
Described solvent is N-BUTYL ACETATE, propyl carbinol, ethyl cellosolve, and its mass component is than being 2:2:1.
Described auxiliary agent comprises defoamer and flow agent, and defoamer and flow agent mass ratio are 1:1, and wherein defoamer is silicone based defoamer, and flow agent is organic fluorine class flow agent.
All N-BUTYL ACETATEs, propyl carbinol and ethyl cellosolve are mixed, whole acroleic acid resins and nitro-cotton resin are dissolved in the above-mentioned mixed solvent, form resin solution.Get the resin solution of all-mass in the above-mentioned steps, mix with staining agent, under normal temperature 800-1000 rev/min condition, stir, form paint vehicle; Paint vehicle in the above-mentioned steps poured into grinding distribution to fineness reaches 5 microns in the sand mill, adds again all mineral fillers, stir under the normal temperature 800-1000 rev/min condition stable after, namely get target coating.
Be attached at LED pin position to measure the LED junction temperature after using the naked lamp of 3W LED to light and with thermocouple wire (Thermocouple).Minute Do lights the time in identical, same amount measuring point position, under the same test envrionment conditions, test coating pastes before the radiator element and coating paste behind the radiator element between temperature contrast, the radiator element coating by testing this coating preparation is compared the temperature difference and is reached 9 ℃ with not being coated with.Test uses coating of the present invention to paste (Korea S) large (DAIMYUNG S﹠amp of bright limited-liability company on radiator element and the existing market; S CO., LTD) temperature contrast between the 0.15mm thickness radiating sheet (TR Coating Agent for Slim Board Heatsink) of producing, the successful that uses coating of the present invention to paste its heat radiation heat conduction of radiator element by test is better than the 0.15mm thickness radiating sheet that (Korea S) large bright limited-liability company produces on the existing market, and exothermic temperature can reduce by 7 ℃ again.
Above-described embodiment shows that the higher then effect of aluminium nitride, boron nitride, aluminum oxide and silicon carbide ratio is better, but mechanical properties obviously descends greater than 25% the time, and causes viscosity can not produce greatly.The present invention is to the prepared material of embodiment 1-12, and the physical and chemical testing data are as follows: wherein the sinuousness touchstone is the mm of GB/T6742-2007(unit); The sticking power testing standard is: GB/T9286-98.
Each product physical and chemical parameter test chart of table 1 embodiment 1-12
Use the sticking power of hundred lattice tester test products:
Draw 10*10(100 with hundred lattice cuttves on the test sample book surface) the little grid of 1mm*1mm, each bar line should reach paint filler deeply; With hairbrush the test zone fragment is cleaned down; Firmly stick tested little grid with 3M600 gummed paper or the gummed paper that is equal to effectiveness, and with the eraser wiping adhesive tape of exerting oneself, to strengthen adhesive tape and tested region area and dynamics; Shut down rapidly in the vertical direction gummed paper.Testing standard: GB/T9286-98:ASTM grade: 5B, the edge of otch is fully smooth, and the grid edge is without any peeling off; ASTM grade: 4B has small pieces to peel off in the intersection of otch, and actual spoilage is no more than 5% in stroke lattice district; ASTM grade: 3B, the edge of otch and/or intersection have is peeled off, and its area is greater than 5%, but less than 15%; ASTM grade: 2B have part to peel off or whole sheet peels off along notching edge, and/or person's part grid is peeled off by full wafer.The area that is peeled off surpasses 15%, but less than 35%; ASTM grade: 1B, notching edge sheet peel off/or some grids parts partly or entirely peel off, its area is greater than drawing 35% of lattice district, but is no more than 65%.
Claims (8)
1. thermofixation heat conduction and heat radiation coating, it is characterized in that: comprise acroleic acid resin, nitro-cotton resin, solvent, auxiliary agent, staining agent and mineral filler, its weight proportion is as follows: acroleic acid resin 25%-30%, nitro-cotton resin 25%-30%, solvent 15%-20%, auxiliary agent 2%-4%, staining agent 2%-3%, mineral filler 20%-30%, the component of described solvent is N-BUTYL ACETATE, propyl carbinol and ethyl cellosolve, its constituent mass is than being 2:2:1.
2. described thermofixation heat conduction and heat radiation coating according to claim 1, it is characterized in that: described mineral filler is aluminium nitride, boron nitride, aluminum oxide, silicon carbide, copper powder or two or more combination.
3. thermofixation heat conduction and heat radiation coating according to claim 1, it is characterized in that: described auxiliary agent comprises defoamer and flow agent, wherein defoamer is silicone based defoamer, and flow agent is organic fluorine class flow agent, and the mass ratio of defoamer and flow agent is 1:1.
4. described thermofixation heat conduction and heat radiation coating according to claim 1, it is characterized in that: described staining agent is printing ink or carbon black.
5. described thermofixation heat conduction and heat radiation coating according to claim 1 and 2, it is characterized in that: described aluminium nitride and boron nitride median size are 0.5～3 micron, aluminum oxide, copper powder, silicon carbide and carbon black median size are 1～3 micron.
6. described thermofixation heat conduction and heat radiation coating according to claim 5, it is characterized in that: described weight proportion is as follows: acroleic acid resin 25%, nitro-cotton resin 25%, N-BUTYL ACETATE 6%, propyl carbinol 6%, ethyl cellosolve 3%, defoamer 1%, flow agent 1%, median size is that 3 microns carbon blacks 3%, median size are 2 Micron Copper Powders 5%, and median size is 1 micron boron nitride 5%, and median size is 0.5 micron aluminium nitride 8%, median size is 3 microns silicon carbide 6%, and median size is 2 micrometer aluminas 6%.
7. according to each described thermofixation heat conduction and heat radiation coating among the right 1-6, its preparation methods steps is:
(1) by arbitrary described each component proportion among the right 1-6, all N-BUTYL ACETATEs, propyl carbinol and ethyl cellosolve are mixed, whole acroleic acid resins and nitro-cotton resin are dissolved in the above-mentioned mixed solvent, form resin solution;
(2) get the resin solution of all-mass in the step (1), mixes with staining agent, under normal temperature condition, under 800-1000 rev/min of condition, stir the formation paint vehicle;
(3) paint vehicle in the step (2) is poured into grinding distribution to fineness reaches 5 microns in the sand mill, is added again mineral filler, under the normal temperature, stir under the 800-1000 rev/min of condition stable after, namely get target coating.
8. a kind of thermofixation heat conduction and heat radiation preparation method for coating according to claim 7 is characterized in that: mineral filler is aluminium nitride, boron nitride, aluminum oxide, silicon carbide, copper powder or two or more combination in the described step (3); Described staining agent is printing ink or carbon black.
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| CN103450772A (en) * | 2012-05-30 | 2013-12-18 | 湖南博弈飞装备新材料研究所 | Organic silicon modified epoxy acrylic acid high anticorrosion heat insulation paint and production method thereof |
| CN103589333A (en) * | 2013-10-12 | 2014-02-19 | 安徽自动化仪表有限公司 | Far-infrared ray-launching radiating paint used for meter housing and preparation method thereof |
| CN103773187A (en) * | 2014-01-20 | 2014-05-07 | 南通钰成光电科技有限公司 | Enamelled wire coating for electric appliance and preparation method thereof |
| CN109000819A (en) * | 2018-05-24 | 2018-12-14 | 国网湖北省电力有限公司电力科学研究院 | A kind of temperature-sensing color-changing material and distribution line arrester Damage by Short Circuit indicating means |
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| CN103450772A (en) * | 2012-05-30 | 2013-12-18 | 湖南博弈飞装备新材料研究所 | Organic silicon modified epoxy acrylic acid high anticorrosion heat insulation paint and production method thereof |
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| CN115279838A (en) * | 2020-03-11 | 2022-11-01 | 住友金属矿山株式会社 | Heat conductive paste |
| CN112874067A (en) * | 2021-01-11 | 2021-06-01 | 安徽和美瑞医用包装材料有限公司 | Medical blister film suitable for bubble cap of packing |
| CN115505312A (en) * | 2021-06-23 | 2022-12-23 | 中国石油化工股份有限公司 | High-temperature-resistant heat-conducting anticorrosive coating and preparation method thereof |
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